“ Fanmusic is a distributor and a brand of Chinese audio-equipment which also has an eBay store. I was contacted by Tony, their manager a while ago and he informed me that they were working on an IEM (under their brand as far as I know), with a dual-dynamic setup in a metal housing with a user replaceable cable, simply named "MS-E1011". Tony offered to send me a...” --ItsMeHere
“PREAMBLE INTRODUCING ROCK JAW’S ALFA GENUS SINGLE DYNAMIC DRIVER IEM The Alfa Genus From Rock Jaw Alfa Genus Paired With Fiio X5 RockJaw UK is a relatively new headphone/earphone manufacturer to the Head-Fi scene, so it was with particular interest that I noticed their early posts on the forums, and when they asked for potential...” --Brooko
“ARCANA IEMs: Rock Jaw offers a variety of IEMs and headphones, aiming to provide great value, reliable and robust devices, with self proclaimed minimal packaging and overhead to help minimise cost. Rock Jaw ARCANA IEMs are a solid entry level dual driver IEM offering a fun sound signature at a remarkable value for money. I have so far racked up 40 enjoyable hours of use with...” --ApplesRevenge
ROCK JAW HYDRA feature ROCK JAW's latest designed dual 11mm + 6mm drivers. For greater balance and separation.